Big wxGL classes refactoring/cleanup:

1. Provide the same API, especially, but not limited to, wxGLCanvas and
   wxCLContext ctors (which were completely different in all ports)
2. Extracted common parts into wxGLCanvas/ContextBase classes
3. Deprecate the old API using implicitly created wxGLContext


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@45388 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/palmos/glcanvas.h

@@ -114,13 +114,7 @@ public:
 
     void SetupPalette(const wxPalette& palette);
 
-    wxPalette CreateDefaultPalette();
-
-    inline wxPalette* GetPalette() const { return (wxPalette *) &m_palette; }
-
 protected:
-    wxGLContext*   m_glContext;  // this is typedef-ed ptr, in fact
-    wxPalette      m_palette;
     WXHDC          m_hDC;
 
     DECLARE_EVENT_TABLE()